Packing box for siphon pipes



March c. H. ATKINS PACKING BOX FOR SIIPHON PIPES Filed Nov. 28 1925INVENTOR.

m 54%, BY

ATTORNEY.

packing boxes moi'e especiaily for i Patented Mar. 15,1927; l

a t me CHARLES H. ATKINs, on PALMER,inessecitfisnrrs;As'srGNonrO-Arkrris Aral 0818i;

ream me, or manna, missile-enemas ACURfPORATDN s nessn'ozausnrrsrnokrizra'isoxironsrmib appiic' ebn, filed November a; swarm, 71,9 9,

My invention, relates. t'oiiinprofven ntsdn H onnection with siphon ppes employe' for carrying off air andthewatei-"of condensation from. theinteriors of urymg-eylinders or di iims, such as are commonly used intextile,

pa'per; an d' othie'r mills, a-n d 're s ids particularlv' in a s lIZLls or nd encirclm 'a" s1 hon M I, "plpe wlthin a tubular case,*-a-n"dintroduced or plug mounted on said pips, =sai'd;11iig bg of a 'screwecapon said' case: all-substantially as 'hereinafterPset forth rag-materdetail.

'The siphon pipes, to which my invention applies, p assthroughhfollobearing boxes,

and the primary objectfof said invention is [to provide such a bearingbox with a packbox equipped with means to produce 'a yielding 'ten'sibnon thecQmpre'sSion 1nein-" berorjfollower for "the; packing, to the endthatilsaid follower is self ad iustirig' and any i if wear; or change,in theconditiori'of said pack fmgis' comp'ensated'for,without;requirement for frequent adjustment of the" pressure means. Inthe old type"of'packing'box, 'n anual adjustment of the follower is'fre- 'quently required,frequent1y*as oftenfsas' once Y t i -ri ng f8'which enters' anzannular space provided between the 'sha ftfl andthebearing box 4: to receive the packing 7 and is for the steam andwater-tight joint between the cylinder shaft and bearing.

Other objects and advantages will appear in the course of the followingdescription.

I attain the objects and secure the advan rages of my invention by themeans illustrated in the accompanying drawings, in which- Figure 1 is alongitudinal, vertical section through a packing box for siphon pipes,which embodies a practical form ofmy invention, and, Fig. 2, a sideelevation of a drying cylinder and associated parts and uneinbe'rs,illustrating the appli cation: thereto' of 4 said invention, this viewbeing on a 1 smaller scale diam-the fir-Stview.

I Similar reference ch'a'ia eters designate similar parts throughouttheseveral views.

- In the, drawings, a portion of a drying cyln rd er or'drum 1srepresentedgat 1, apor tion da ho11ow shaftinerefor at 2, a spur Y Vgear at-B' for driving sald'sha-ft anddnum, a between a follower and anadjustrn'g sleeve.

box 4, andpasses tl'ier'efro'm into the drum 1 through" the hollow shaft2'. Thediameter ofthe slphon pipefi is smaller than that of the passagethrough the shaft Qyand said pipe isbent downward ly within the d-rum'luntilthe inner end of said wine is quite close to the lower side ofsaiddrum. The pipe 5 after leaving the hollow shaft 2 passes outwardlybeyond the hol lov bearing L and the "follower 6 i s'mounted' on saidpipe in positron --to "bear against packing whicl'i -sur- *rounds' theouterterminal of said shaft, such terminal protruding from that portion.of

.saidbe'ari ng which fdir'ectly. supports the shaft i nt'o an-enlargedchamber in said bearing. The "follower 6 consists in part of a purposeof forcing said packing tightly against said shaft to prevent leakage ofsteam and water between said shaft and box. It is this joint that myinvention is designed to keep tight at allltimes. The siphon pipe '90 5is for the purpose of permitting the confined'air and the water ofcondensation in, the drum 1 to be driven therefrom by the incomingsteam; r I 4 The parts and members thus far described, both structurallyand functionally, are old and Well known; 7

The bearing box lis provided at the outer end with an interiorlyscrew-threadedflange 9, and a tubular member or case 10, is pro-' videdat one end with an enlarged head 11 1 which is adapted to'fit into saidflange, said head beingexteriorly screw-threaded to engage thescrewthreaols onthe flange. The i i I tubular case 10 is externallyscrew-threaded at the outer terminal to receive a screw cap 12-v Locatdnpar ly in. theca e 0v and part the case 10. The pipe 5, extendsthrough the case 10 and the follower 13 and out through the outer end ofthe cap 12, and a spiral spring 15 is mounted on said pipe between 1said follower and the follower 6, there pref erably being a pair ofpacking-rings 16 and a metallic washer 16 introduced between theadjacent ends of said first-named follower and said spring. A portion ofthe spring 15 is in the case lOand another portion thereof in the hollowbearing 4:, and the packingring 16 and washer 16 are in said case, saidwasher being next to said spring.

It isnow evident that the spring 15, which is always under compressionfrom the fol lower 13 and the screw cap 12, exerts a yielding pressureon the follower 6, and forces the latter tightly against the packing 7,with the result that said packing is forced against the joint betweenthe shaft 2 and the box 4. Since such pressure-is yielding, the follower6 automatically adjusts itself to the packing '7, and there is providedautomatic compensationfor wear or other change in the condition of saidpacking. Occasionally, as

the contacting and rubbing parts wear, the

a cap 12 is screwed farther onto the case 10,

and, thereby, through the medium of the follower 1'3 and the interveningpackingrings 16 and washer 16*, increases the compression of the spring15, thus causing the follower ring 8 to be forced tighter or harderagainst the packing 7 I The screw cap 12, with the associated parts andmembers, besides affording means for increasing the pressure of thespring 15, also enables said spring initially to be compressed to justthe extent required, and to be maintained under the desired degree ofcompression.

The removal of the pipe 5 and the follower 6 from the drum land thebearing box 4: is easily effected merely by unscrewing the head 11 ofthe case 10 from the flange 9 of said box. I I i "It is understood, ofcourse, that the drum 1 revolves with its shaft 2, but that the pipe 5is stationary.

More orless change in matters of detail may be made in this devicewithout departing from the spirit of my invention orexceeding the scopeof what is claimed.

vWhat I claim as my invention, and desire to secure by Letters Patent,is

The combination, in a packing box of the class described, with a drummounted on a hollow shaft, a bearing box for said shaft,

said box having a screw-threaded flange at the outer end, a siphon pipeof less diameter than the shaft passage and extendingthrough saidpassage, packing on said shaft in said bearing box, and a followermounted on said pipe in position to compress said packing, of a caseencircling said pipe and provided with a screw-threaded head to engagesaid flange, a screw cap mounted on the outer terminal of said case,through which cap said pipe extends, a follower mounted on said pipepartially within said case and partially within said cap, in position tobe moved inwardly by said cap, and having an enlarged head at theouterend to prevent such end from entering said case, a spring extending fromthe inner end of said second named follower in said case to saidfirst-named follower in said bearing box, and a packing-ring and awasher mounted on said pipe between adjacent ends of said second-namedfollower and spring. CHARLES H. ATKINS.

